SOLUTION: A jet plane flying with the wind flew 2600 km in 5 hours. Flying against the wind, the plane could fly only 2200 km in the same amount of time. What is the; a) The rate of the pla

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Question 540886: A jet plane flying with the wind flew 2600 km in 5 hours. Flying against the wind, the plane could fly only 2200 km in the same amount of time. What is the;
a) The rate of the plane in calm air
b) The rate of the wind

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
r = d / t

p + w = 2600 / 5 ___ p + w = 520

p - w = 2200 / 5 ___ p - w = 440

adding the equations will eliminate w
___ solve for p, then substitute back to find w